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Pennsylvanian period |
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Pennsylvanian period: see Carboniferous period Carboniferous period (kärbənĭf`ərəs) ..... Click the link for more information. . How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Around 315 million years ago, during the Pennsylvanian period of Earth's history, these regions formed the tropical belt of a huge supercontinent that straddled the equator. This is just the opposite of what scientists had thought was the last major movement during the Pennsylvanian period some 300 million years ago, in which the Wichita Mountains to the south were uplifted, causing land north of the fault to sink. |
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